Consolidated Statements of Cash Flows - USD ($)	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Cash Flows from Operating Activities:
Net income (loss)	$ 4,808,000	$ (7,187,000)
Reconciliation of net income (loss) to net cash used in operating activities:
Provision for bad debt expense	109,000	60,000
Depreciation and amortization	210,000	181,000
Change in fair value of derivative liabilities	(3,545,000)	300,000
Amortization of operating lease right-of-use asset	445,000	423,000
Stock based compensation	552,000	3,072,000
Gain from debt extinguishment	(1,060,000)	0
Subtotal of non-cash charges	(3,289,000)	4,036,000
Changes in operating assets and liabilities:
Accounts receivable	(219,000)	(400,000)
Inventories	(3,412,000)	(77,000)
Prepaid expenses and other current assets	(305,000)	279,000
Other assets	3,000	0
Accounts payable and accrued expenses	1,553,000	325,000
Deferred revenue	(30,000)	177,000
Lease liabilities	(456,000)	(426,000)
Net cash used in operating activities	(1,347,000)	(3,273,000)
Cash Flows from Investing Activities:
Purchase of property, plant and equipment	(110,000)	(169,000)
Net cash used in investing activities	(110,000)	(169,000)
Cash Flows from Financing Activities:
Proceeds from issuance of common stock to related parties	3,000,000	0
Proceeds from issuance of notes payable	184,000	2,416,000
Repayment of notes payable	(1,400,000)	0
Dividend payment	(883,000)	0
Net cash provided by financing activities	901,000	2,416,000
Net decrease in cash	(556,000)	(1,026,000)
Cash, beginning of the year	1,422,000	2,448,000
Cash, end of the year	866,000	1,422,000
Supplemental disclosure of cash flow information
Cash paid for interest	150,000	0
Cash paid for income taxes	0	0
Issuance of common stock for dividend payment	770,000	0
Accrued dividends payable on Series A convertible preferred stock	0	1,650,000
Reclassification of liability awards to equity	0	1,638,000
Conversion of Series A Preferred Stock to Common Stock [Member]
Supplemental disclosure of cash flow information
Conversion of convertible preferred stock	$ 14,000	$ 17,000